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Service and Troubleshooting
This manual is to be used by qualified, professionally
trained HVAC technicians only. Goodman does not assume
any responsibility for property damage or personal injury
due to improper service procedures or services performed
by an unqualified person.
Pride and workmanship go into every product to provide
our customers with quality products. It is possible, however,
that during its lifetime a product may require service.
Products should be serviced only by a qualified service
technician who is familiar with the safety procedures
required in the repair and who is equipped with the proper
tools, parts, testing instruments and the appropriate service
manual. REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATE SERVICE MANUAL BEFORE
BEGINNING REPAIRS.
Only personnel that have been trained to install, adjust, service or
repair(hereinafter, "service") the equipment specified in this manual
should service the equipment. The manufacturer will not be
responsible for any injury or property damage arising from improper
service or service procedures. If you service this unit, you assume
responsibility for any injury or property damage which may result. In
addition, in jurisdictions that require one or more licenses to service
the equipment specified in this manual, only licensed personnel should
servise the equipment.
Improper installation, adjustment, servicing or repair of the equipment
specified in this manual, or attempting to install, adjust, service or
repair the equipment specified in this manual without proper training
may result in product damage, property damage, personal injury or
death.
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
GMES9*/GCES9*/AMES9*/ACES9*/VMES9*/VCES9*
Single Stage Gas Furnaces and Accessories
WARNING
WARNING
Copyright ©
2019-2020 Goodman Manufacturing Company, L.P.
is a registered trademark of Maytag Corporation or its related companies and is used under license.
®
IMPORTANT INFORMATION ............................................ 2
PRODUCT IDENTIFICATION ........................................... 4
SYSTEM OPERATION ...................................................... 7
SCHEDULED MAINTENANCE ....................................... 28
SERVICING ..................................................................... 31
ACESSORIES ................................................................. 47
TROUBLESHOOTING CHART ....................................... 51
WIRING DIAGRAMS ....................................................... 54
0140M00517-A
All rights reserved.
TABLE OF CONTENTS
RS6612016r3
April 2020
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Summary of Contents for Amana GMES9 Series
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Page 1: Table Of Contents
Service and Troubleshooting GMES9*/GCES9*/AMES9*/ACES9*/VMES9*/VCES9* Single Stage Gas Furnaces and Accessories This manual is to be used by qualified, professionally TABLE OF CONTENTS trained HVAC technicians only. Goodman does not assume any responsibility for property damage or personal injury IMPORTANT INFORMATION ..........2 due to improper service procedures or services performed PRODUCT IDENTIFICATION ........... -
Page 2: Important Information
IMPORTANT INFORMATION IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing in-... - Page 3 IMPORTANT INFORMATION CO can cause serious illness including permanent brain damage or death. B10259-216 Advertencia especial para la instalación de calentadores ó manejadoras de aire en áreas cerradas como estacionamientos ó cuartos de servicio. Las emisiones de monóxido de carbono pueden circular a través del aparato cuando se opera en cualquier modo.
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Page 4: Product Identification
The model and manufacturing number are used for positive identification of component parts used in manufacturing. Please use these numbers when requesting service or parts information. Furnace Nomenclature Brand Minor Revision A- Amana® G- Goodman® A - Initial Release V- GMC® B - 1st Revision Configuration... - Page 5 PRODUCT IDENTIFICATION MODEL # MFG# DESCRIPTION GMES920403ANAA GMES920603BNAA Goodman® Brand 92% Single Stage Gas Furnace. 34.5" tall, GMES920803BNAA Upflow/Horizontal Installation, 1-stage gas valve induced draft. GMES920804CNAA Multispeed ECM motor. 120-volt silicon carbide 17-second hot GMES92 surface ignition. Left or right gas pipe entry. The furnace also GMES920805CNAA features an aluminized steel tubular heat exchanger.
- Page 6 PRODUCT IDENTIFICATION MODEL # MFG# DESCRIPTION AMES920403ANAA AMES920603BNAA Amana® Brand 92% Single Stage Gas Furnace. Upflow/Horizontal AMES920803BNAA Installation, 34.5" tall, 1-stage gas valve induced draft.Multispeed AMES920804CNAA ECM motor. 120-volt silicon carbide 17-second hot surface AMES92 ignition. Left or right gas pipe entry. The furnace also features a AMES920805CNAA stainless steel tubular heat exchanger.
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Page 7: System Operation
ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. OR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A Goodman brand G*ES9* and Amana brand A*ES9* ® ® QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER. furnaces are ETL certified. All furnaces are built for use with Natural gas but can be converted for use with LP gas. - Page 8 SYSTEM OPERATION American National Standards Institute instructions to determine if the piping system from furnace to termination can be accomplished within 25 West 43 Street, 4 Floor the guidelines given. NOTE: The length of flue and/ New York, NY 10036 or combustion air piping can be a limiting factor in the location of the furnace.
- Page 9 SYSTEM OPERATION Combustion and Ventilation Air Requirements section in this manual or the installation instructions for details. • If the furnace is used in connection with a cooling unit, install the furnace upstream or in parallel with the cooling unit coil. Premature heat exchanger failure will result if the cooling unit coil is placed ahead of the furnace.
- Page 10 SYSTEM OPERATION Corrections must be in accordance with the latest edition of Most homes will require outside air be supplied to the furnace the National Fuel Gas Code NFPA 54/ANSI Z223.1 and/or area by means of ventilation grilles or ducts connecting CSA B149 Installation Codes.
- Page 11 SYSTEM OPERATION 9.3.2.2* Known Air Infiltration Rate Method. Where the air infil- 9.3.3.1 Two Permanent Openings Method. Two permanent openings, one commencing within 12 in. (300 mm) of the top and one commencing tration rate of a structure is known, the minimum required volume within 12 in. (300 mm) of the bottom, of the enclosure shall be provided. shall be determined as follows: The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors, as follows: (1) For appliances other than fan-assisted, calculate using the following equation:...
- Page 12 SYSTEM OPERATION (c) The minimum size of outdoor opening(s) shall be the full size Chimney or Gas Vent of outdoor opening(s) calculated in accordance with 9.3.3, mul- tiplied by the reduction factor. The minimum dimension of air openings shall not be less than 3 in. (80 mm). NOTE: The air duct openings must have a free area of not less than one square inch per 9.3.5 Engineered Installations. Engineered combustion air installations 2000 BTU of the total input shall provide an adequate supply of combustion, ventilation, and dilution rating of all equipment in the...
- Page 13 SYSTEM OPERATION 9.3.8.5 Ducts shall not be screened where terminating in an attic space. The 34.5” single stage furnace is one of the products in our newly redesigned line of shorter chassis furnaces. It is 9.3.8.6 Horizontal upper combustion air ducts shall not slope downward available in 92% / 96% AFUE up flow / horizontal model and toward the source of combustion air.
- Page 14 SYSTEM OPERATION Propane Gas and/or High Altitude Installations DISCHARGE WARNING OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED. HE APPROPRIATE KITS Side Side Return Return MUST BE APPLIED TO INSURE SAFE AND PROPER FURNACE OPERATION. Duct Duct Connection...
- Page 15 SYSTEM OPERATION recommendations and to verify that all vent/flue piping and • A vent termination shall not terminate over public connectors are compatible with furnace flue products. walkways or over an area where condensate or Additionally, it is the responsibility of the installer to ensure vapor could create a nuisance or hazard or could be that all piping and connections possess adequate structural detrimental to the operation of regulators, relief valves,...
- Page 16 SYSTEM OPERATION Vent/Flue and Combustion Air Pipe Lengths and *MES9* / *CES9 Direct Vent (2-Pipe) & Non-Direct Vent (1-Pipe) Maximum Allowable Length of Vent/Flue Pipe Diameters Refer to the preceding table for applicable length, elbows, (3) (5) Number of Elbow s and pipe diameter for construction of the vent/flue and PIPE MODEL...
- Page 17 SYSTEM OPERATION 90° ELBOWS ELBOWS STRAIGHT 3” - 24” Horizontal vent/flue pipe terminations should be as shown in the following figure. Refer to Vent/Flue Pipe and Combustion Air Pipe - Termination Locations section in this manual or the installation instructions for details concerning location restrictions.
- Page 18 SYSTEM OPERATION 12" MINIMUM VENT/FLUE TEE 90° ELBOW TURNED DOWN 9" 12" Direct Vent Terminal 50,000 Btuh or less 12" 12" MINIMUM ABOVE 12" Forced Air Inlet HIGHEST ANTICIPATED SNOW LEVEL Direct Vent Terminal More than 50,000 Btuh FIGURE 1 2.
- Page 19 SYSTEM OPERATION 1. Determine the best location for the termination kit. Roof termination is preferred since it is less susceptible to dam- age, has reduced intake contaminants and less visible vent vapors. For side termination, consideration should be given to: a.
- Page 20 SYSTEM OPERATION To install the drain, refer to the following instructions and illustration. COMBUSTION AIR INTAKE PIPE OPTIONS: The RF000142 coupling can be secured directly to the furnace intake coupling if condensation is occurring in the combustion air inlet pipe. If the RF000142 is used on the combustion air inlet, it must be installed with the arrow pointing up.
- Page 21 SYSTEM OPERATION determined based upon the BTU/ft content of the derated Natural Gas Capacity of Pipe gas and the altitude. Refer to the National Fuel Gas Code, In Cubic Feet of Gas Per Hour (CFH) NFPA 54/ANSI Z223.1, and information provided by the gas Length of Nominal Black Pipe Size supplier to determine the proper orifice size.
- Page 22 SYSTEM OPERATION GAS PIPING CHECKS available from most regulator manufacturers and propane gas suppliers. Before placing unit in operation, leak test the unit and gas connections. Use pipe dope approved for use with L.P. gas. Refer to the following illustration for typical propane gas installations and piping.
- Page 23 SYSTEM OPERATION Propane Gas Piping Charts WARNING When installing a propane storage tank, the contractor must consider proper tank sizing, safety, efficiency, ground characteristics and aesthetics. For a residential customer, F THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL the size may range from 100-1,000 gallons, depending on INJURY OR LOSS OF LIFE.
- Page 24 SYSTEM OPERATION are identified as HUM and EAC. The humidifier and electronic A 40 V.A. transformer and an integrated electronic control are air cleaner neutral terminals are identified as NEUTRAL. All field built into the furnace to allow use with most cooling equipment. wiring must conform to applicable codes.
- Page 25 SYSTEM OPERATION used, a connecting duct must be installed between the unit the air cleaner, consider the application. The electronic air and the utility room wall so the blower will not interfere with cleaner must be readily accessible for periodic inspection and combustion air or draft.
- Page 26 SYSTEM OPERATION Cooling Mode is not sensed in seven (4) seconds the gas valve will be de-energized and another purge will occur. The control The normal operational sequence in cooling mode is as will cycle the gas valve a total of three (3) times before follows: it determines it cannot establish measurable combustion 1.
- Page 27 SYSTEM OPERATION 8. Low Flame Sense Signal. If the furnace continues to 6. Make sure there are no cabinet air leaks allowing sup- operate and the micro-amp signal from the flame sensor ply air to affect combustion falls below specified level, the diagnostic light code for 7.
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Page 28: Scheduled Maintenance
SCHEDULED MAINTENANCE BURNERS WARNING HIGH VOLTAGE LECTRICAL COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS. O AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. ONTACT A QUALIFIED SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME APPEARANCE SHOULD DEVELOP. - Page 29 SCHEDULED MAINTENANCE HEATING PERFORMANCE TEST The dissipation of the heat transferred to the heat exchanger is now controlled by the amount of air circulated over its surface. Before attempting to diagnose an operating fault, run a heating performance test and apply the results to the Service Problem The amount (CFM) of air circulated is governed by the external Analysis Guide.
- Page 30 SCHEDULED MAINTENANCE *MES92 Pressure Switch Trip Points And Usage Chart Coil Cover Coil Cover ID Blower ID Blower ID Blower Set Point on Max Make Set Point on Max Make Coil Cover Model Pressure Fall On Pressure Pressure Fall On Pressure Pressure Switch (PF) W.C.
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Page 31: Servicing
SERVICING SERVICE NUMBERS CHECKING VOLTAGE ..........................35 CHECKING WIRING ..........................35 S-3A THERMOSTAT AND WIRING .......................35 S-3B HEATING ANTICIPATOR ........................35 CHECKING TRANSFORMER AND CONTROL CIRCUIT ..............36 S-16A CHECKING AIR CIRCULATOR BLOWER MOTOR (MULTI-SPEED ECM MOTOR) ...... 36 S-200 CHECKING DUCT STATIC ........................37 S-201 CHECKING TEMPERATURE RISE .....................37 S-300... - Page 32 SERVICING As more and more electronic's are introduced to the Heating INCOMING POWER Trade, Polarization of incoming power and phasing of pri- mary to secondary voltage on transformers becomes more 120.00 0.00 important. Polarization has been apparent in the Appliance industry since the introduction of the three prong plug, however, the Heating Industry does not use a plug for incoming power, but is hard wired.
- Page 33 SERVICING CUBIC FEET GAS RATE -- CUBIC FEET PER HOUR Size of Test Dial Size of Test Dial Seconds for Seconds for cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft Revolution Revolution 1800 1636 1500 1385 1286 1200 1125 1059 1000...
- Page 34 SERVICING Unsatisfactory Service Problem No Heat Heat POSSIBLE CAUSE Test Method DOTS IN ANALYSIS Remedy GUIDE INDICATE "POSSIBLE CAUSE" ● Pow er Failure Test Voltage ● Blow n Fuse Test Voltage ● Loose Connection Check Wiring ● Shorted or Broken Wires Check Wiring S-3A ●...
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Page 35: Checking Voltage
SERVICING S-1 CHECKING VOLTAGE CHECKING THERMOSTAT, WIRING AND ANTICIPATOR WARNING S-3A THERMOSTAT AND WIRING HIGH VOLTAGE ISCONNECT POWER BEFORE SERVICING OR WARNING CHANGING ANY ELECTRICAL WIRING. ULTIPLE POWER SOURCES MAY BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. ISCONNECT POWER BEFORE SERVICING. -
Page 36: Checking Transformer And Control Circuit
SERVICING S-16A CHECKING AIR CIRCULATOR BLOWER Cooling Anticipator The cooling anticipator is a small heater (resistor) in the MOTOR (MULTI-SPEED ECM MOTOR) thermostat. During the “OFF” cycle it heats the bimetal element helping the thermostat call for the next cooling cycle. WARNING This prevents the room temperature from rising too high before the system is restarted. -
Page 37: Checking Duct Static
SERVICING COOL MOTOR SPEED DIP SWITCH SETTING (S1-1, S1-2, S1-3) Position OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF Motor Speed COOL Position OFF OFF ON OFF ON ON ON OFF ON ON ON ON Motor T1+T2 Speed COOL... -
Page 38: S-300 Checking Primary Limit Control
SERVICING 3. Subtract the return air temperature from the supply air WARNING temperature to determine the air temperature rise. Allow adequate time for thermometer readings to stabilize. HIGH VOLTAGE 4. Adjust temperature rise by adjusting the circulator blower ISCONNECT POWER BEFORE SERVICING OR speed. -
Page 39: Checking Flame Rollout Control
SERVICING To aid in identifying these controls, refer to the Primary Limit The control is designed to open should a flame roll out oc control opens, the air circulation blower will run continuously. Charts in furnace Technical Manual for part number, On single-stage models, the ignition control diagnostic light temperature setting and color(s) code. -
Page 40: Induced Draft Blower Motor
SERVICING S-303 INDUCED DRAFT BLOWER Motor .025 ± .002 (CARRYOVER SLOT WIDTH) WARNING 12X Ø.125 HIGH VOLTAGE ISCONNECT POWER BEFORE SERVICING OR .125 x .030 MIN SLOT INSTALLING THIS UNIT. ULTIPLE POWER SOURCES MAY BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. -
Page 41: Checking Gas Pressure
SERVICING STREAM B The length of Dimension “A” determines the angle of Gas Stream “B”. 10.0 DENT OR BURR STREAM B Measuring Inlet Gas Pressure (Alternate Method) A dent or burr will cause a severe deflection of the gas stream. 3. - Page 42 SERVICING Gas Manifold Pressure Measurement and Adjustment c. Turn ON the gas supply. d. Turn on power and close thermostat “R” and “W1” contacts to provide a call for heat. CAUTION e. Measure the gas manifold pressure with burners firing. Adjust manifold pressure using the Manifold Gas O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE Pressure table shown below.
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Page 43: S-308 Checking Hot Surface Ignitor
SERVICING S-309 CHECKING FOR FLASHBACK Gas Valve On/Off Flashback will also cause burning in the burner venturi, but is Selector Inlet Pressure Switch caused by the burning speed being greater than the gas-air flow velocity coming from a burner port. Flashback may occur at the moment of ignition, after a burner INLET OUTLET... -
Page 44: Checking For Delayed Ignition
SERVICING S-312 CHECKING FOR DELAYED IGNITION WARNING Delayed ignition is a delay in lighting a combustible mixture of gas and air which has accumulated in the combustion INE VOLTAGE NOW PRESENT chamber. Furnace design makes this extremely unlikely unless safety These tests must be completed within a given time frame due controls have been by-passed or tampered with. - Page 45 SERVICING PCBBF145 DIAGRAM 59-5240 REV.003 CR35 CR18 R175 CR19 CR13 CR15 R177 R176 CR36 R179 R178 FLAME CURRENT 1VDC=1UA R181 CR38 R110 R112 CR37 R111 R113 R121 R115 R126 R125 R123 R120 R151 R180 R150 R145 R149 R168 R170 R148 CR26 R117 R118...
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Page 46: Checking Flame Sensor
SERVICING S-314 CHECKING FLAME SENSOR ANNUAL INSPECTION The furnace should be inspected by a qualified installer, or A flame sensing device is used in conjunction with the ignition service agency at least once per year. This check should be control module to prove combustion. If proof of flame is not performed at the beginning of the heating season. -
Page 47: Acessories
ACCESSORIES MODEL # MFG # DESCRIPTION Fossil Fuel Kit. The AFE18-60A control is designed for use where the indoor coil is located above/downstream of a gas or fossil fuel furnace when used with a heat pump. It will operate with single and two stage heat pumps and single and two stage AFE18-60A furnaces. - Page 48 ACCESSORIES MODEL # MFG # DESCRIPTION DCVK-20 (CVENT-2) Concentric Vent Kit. This kit is designed to allow terminations of a direct vent furnace to be "concentrically" vented through a wall or roof. This kit allows a single penetration DCVK-30 to support terminations for both the vent/flue and the combustion air intak (CVENT-3) External Filter Rack Kit.
- Page 49 ACCESSORIES GOODMAN® and AMANA® BRAND *MES9*/*CES9* Model Furance Accessories - 92% Single Stage MODEL NUMBER *MES920403ANAA • • • • • • • • • • • *MES920603BNAA • • • • • • • • • • • *MES920803BNAA •...
- Page 50 ACCESSORIES GOODMAN® and AMANA® BRAND *MES9* Model Furance Accessories - 96% Single Stage MODEL NUMBER *MES960403ANAA • • • • • • • • • • • *MES960603BNAA • • • • • • • • • • • *MES960803BNAA •...
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Page 51: Troubleshooting Chart
TROUBLESHOOTING Associated Symptoms of Abnormal Fault Description(s) Possible Causes Corrective Action Cautions and Notes Operation LED Code • Furnace fails to operate. • No 115 volt power • Manual disconnect • Assure 115 and 24 volt • Turn power OFF •... - Page 52 TROUBLESHOOTING • Circulator blower runs • Primary or auxiliary • Faulty primary or • Check primary/ • Turn power OFF prior continuously. No furnace operation. limit circuit is open. auxiliary limit switch. auxiliary limit. to repair. • Integrated control • Insufficient conditioned Replace if necessary.
- Page 53 TROUBLESHOOTING • Furnace not operating. • Open Fuse / No 24V • High voltage surge • Replace the Fuse. • Verify line voltage • Integrated control module power to integrated blows off the fuse. supply is turned off diagnostic LED is flashing TEN control module before proceeding (10) flashes.
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Page 54: Wiring Diagrams
WIRING DIAGRAMS ALL FUEL SYSTEM CONTROL BOARD - AFE1860A 24VAC POWER SUPPLY P1-8 +VDC INPUT POWER +5VDC FURNACE DEMAND W1-FURN P1-7 SUPPLY OUTPUT W2-HP BLOWER FAN DEMAND P1-4 +VDC OUTPUT 24VAC POWER SUPPLY INPUT P1-6 G-STAT (COMMON) SECOND STAGE FURNACE P1-5 G-FURN DEMAND OUTPUT... - Page 55 WIRING DIAGRAMS *MES96***/*CES96***A* PCBBF145 CONTROL MICRO CONTROLLED CIRC-H REPLACED WITH WIRING MATERIAL Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
- Page 56 Please fill out the feedback form on one of the following links: Goodman Brand Products: (http://www.goodmanmfg.com/about/contact-us). ® Amana Brand Products: (http://www.amana-hac.com/about-us/contact-us). ® You can also scan the QR code on the right for the product brand you purchased to be directed to the feedback page. GOODMAN BRAND ®...